Human Performancemedium#940
The circadian low point (WOCL - Window of Circadian Low) typically occurs:
A
at midday
B
at 1800 local time
C
between approximately 0200 and 0600 local body time
CorrectD
at noon
Explanation
The WOCL occurs roughly 0200-0600 body time, when alertness, body temperature, and performance are at their lowest.
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